﻿Canadian Stromatoporoids. 139 



AcTiNOSTKOMA Tykrellii, Nicholsoii. 



Adinostroma Tyrrellii, Nicholson. 1891. Ann. and Mag. 



Nat. Hist., ser. 6, vol. VIL, p. 317, 



pi. 8, figs. 4 and 5. 

 Apparently not uncommon and in fine condition in the 

 Stringocephalus limestone at five different localities on the 

 shore and islands of the southern portion of Dawson Bay, 

 Lake Winnipegosis, where specimens were collected by 

 J. B. Tyrrell and D. B. Dowling in 1889. 



AcTiNOSTROMA Whiteavesii, Nicholson. 



Adinostroma Whiteavesii, Nicholson. 1891. Ann. and Mag. 



■ Nat. Hist., ser. 6, vol. VII., 



p. 320, fig. 2, and pi. 9, figs. 



3 and 4. 



Peace Kiver, near the mouth of Little Red River, 



Professor Macoun, 1875 : two specimens. 



ACTINOSTROMA FENESTRATUM, Nicholson. 



Adinostroma fenesti^aticni, l^iGhohon. 1889. Mon. Brit. Stro- 



matop., pt. 2, p. 146, pi. 17, figs. 

 8 and 9 : and, 1891, Ann. and 

 Mag. Nat. Hist., ser. 6, vol. YIL, 

 p. 322, pi. 10, figs. 3 and 4. 

 North-west shore of Lake Manitoba, at Pentamerus 

 Point, three miles and a half north of the mouth of Crane 

 River, J. B. Tyrrell and J. F. Whiteaves, 1888 ; several 

 specimens. Lake Winnipegosis, on two small islands at 

 the southern end of Dawson Bay ; also on the south- 

 western shore of Dawson Bay a little to the west of Salt 

 Point, and at the south end of Rowan Island, in the 

 western portion of the bay, J. B. Tyrrell, 1889 : one 

 specimen from each of these localities. 



